tech.dc5.whois/dc5-whois
DC5 WHOIS
WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name (ENS, Unstoppable, Handshake) lookups. No API key.
alive probed 2026-10-19 · HTTP 200
4tools
≈ 1.1ktokens, estimate
≈ 0.5 %of Claude's 200k window
0.8×the median server
899 msto initialize
906 msto list tools
- Endpoint
- https://whois.dc5.tech/mcp (streamable-http)
- Host
- whois.dc5.tech
- Protocol
- 2025-11-25
- Reports itself as
- dc5-whois 2026.10.18-cdf49eb
- Capabilities
- logging, tools
- Instructions
- 491 characters
- Of a 1M window
- ≈ 0.1 % of a 1M context window, estimate
- Claude count
- The count_tokens endpoint refused the tool schemas: invalid x-api-key. The estimate stands in.
- Website
- https://whois.dc5.tech
- Registry
- active, updated 2026-10-19 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
Estimates with the o200k_base tokenizer.
| Tool | o200k estimate | Share of this server |
|---|---|---|
| lookup_target | 469 | 43 % |
| check_mail_security | 246 | 23 % |
| check_lookalike | 221 | 20 % |
| list_data_sources | 143 | 13 % |
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The Anthropic count_tokens endpoint refused the tool schemas (invalid x-api-key). A client that validates schemas can refuse them too.
Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.